Supplier Page from Thermo Fisher Scientific for Sodium phosphate, 0.5M buffer soln., pH 7.0
1-Fluoro-2-nitrobenzene, 99% from Thermo Fisher Scientific
Ethyl 3-aminocrotonate, 98.5% from Thermo Fisher Scientific
Ethyl acetoacetate, 99%, pure from Thermo Fisher Scientific
Fluorescein, pure from Thermo Fisher Scientific